By analyzing the investigated model,we can found that restriking phenomena occur which cause arc channel commutate to the contact region.

對斷路器測試分析發(fā)現(xiàn)，這一現(xiàn)象是由電弧通道轉(zhuǎn)移至觸頭區(qū)引起黄色网页在线免费看。，而造成電弧通道轉(zhuǎn)移的主要原因是發(fā)生在觸頭區(qū)的重?fù)舸┈F(xiàn)象。

The dynamic impedance of a closed-toe steel pile can be substantially improved by concreting the pile before restriking.

動態(tài)阻抗的封閉腳趾鋼樁，就可以大大提高混凝土樁前restriking 超碰人妻人人操人人干。

Moreover, it shows that with air vents opened to 20%, 60% and 100%, the arc can arrive in the splitter plates successfully under 10mT magnetic field without restriking.

此外，還發(fā)現(xiàn)當(dāng)磁場為10mT時，在出口面積分別為20%视频二区亚洲、60%和100% 3種情況下電弧均可以順利到達(dá)柵片超碰在线播放平台，在運動的過程中沒有電弧重?fù)舸┈F(xiàn)象的發(fā)生。

By discussing the influences of restriking phenomena, some effective methods are presented for restraining restriking phenomena and improving the performance of current limiting.

通過分析影響開斷過程電弧重?fù)舸┈F(xiàn)象的主在线a亚洲视频播放在线观看、要因素色呦呦在线国产亚洲，本文提出了幾種抑制開斷過程重?fù)舸┈F(xiàn)象、提高斷路器限流特性的有效方法www.麻豆视频.com。

While using this testing system to observe arc moving in the limiter, it was found that the local restriking near the entrance to iron chute was the cause of arc voltage drop.

利用該測試系統(tǒng)华人永久免费在线视频，在研究限流器中電弧運動過程時發(fā)現(xiàn)，存在于柵片入口附近空間的局部重?fù)舸┈F(xiàn)象欧美一区精品视频一二区:，是導(dǎo)致分?jǐn)噙^程中電弧電壓跌落的重要原因成年片色大黄全免费网站久久。

Analysis of circuit breaker restriking overvoltage for VAR compensation devices and protection measures ;2. Investigation and Analysis on natural vegetation protection measures and its effect in the Erjina Banner of the lower Heihe River;3. Some practical protection measures are put forward.

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One eminent said a Word, he said: there is absolutely no one lives to people under the cdiv －－－－－－－.so we should overcome the psychological barriers, for the future of the things the arrangement, is a proactive approach to be brave to do what the organ donor, giving full play to the right of life Finally, after the death of useless, other organs, resuscation, for those unfortunate life were restriking hope, be a life

曾經(jīng)有一位高僧說過一句話一级视频在线观看免费播放，他說：絕對沒有一個救人的人還下墮地獄的。所以我們應(yīng)該克服心理障礙欧美亚洲另类专区，為未來的事情預(yù)作安排https国产黄视免费，才是積極進取的做法，要勇敢的做器官捐贈者日韩AV毛片精品簧片无码，發(fā)揮生命最后的使用權(quán)亚洲精品精品熟妇熟妇，化無用的死后身軀、器官少妇熟妇亚洲综合网站，搶救其他生命国产色视频在线观看香蕉，為那些不幸者們重燃希望，做一個生命的勇者

The resultant voltage appearing across the circuit consists of a high frequency component superimposing on the normal system voltage, the total being known as the restriking voltage and constituting a switching surge .

出現(xiàn)于電路中的電壓由一高頻分量迭加在正常系統(tǒng)電壓上所組成5区av在线播放，總稱為重燃電壓日韩在线观看自拍111页，且引發(fā)操作過電壓。

During the motion process, the stagnation and back commutation occur and worsen the performances of circuit breaker. According to the real interruption process, a three-dimensional(3-D) model of arc motion under the effect of external magnetic field is built based on magnetohydrodynamic, which can predict the restriking phenomena. With air vents opened to 60%, the restriking phenomena occur under 3mT magnetic field; when the magnetic field is increased to 5mT, the restriking phenomena disappears.

該文以磁流體動力學(xué)為基礎(chǔ)建立了三維空氣電弧等離子體在外部磁場作用下運動的數(shù)學(xué)模型国产在线精品99一区，此模型可以預(yù)測電弧的重?fù)舸┈F(xiàn)象新久久黄色视频，并發(fā)現(xiàn)當(dāng)滅弧室的出口面積為60%時，電弧在3mT磁場的作用下運動時出現(xiàn)了重?fù)舸┈F(xiàn)象色喲哟，而當(dāng)磁場增大到5mT時重?fù)舸┈F(xiàn)象消失久久综合一色综合久久小蛇。

When compensating devices are switched by vacuum switches, if they are switched on group, the inrush current can be controlled by inserting suitable current-restrained reactance in-series. Since the restriking overvoltage is pertinent to the capacity of compensating devices and the time of restriking and igniting, the overvoltage can be restrained by arresters with asterism connection at the entrance of the capacitors. Although switching capacitance devices will bring up high interception cross overvoltage, the metal-oxide arrester can limit this overvoltage in the system designed in the thesis, and naturally the compensating devices can operate normally.

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